I\'m trying to use rails 3 without any db backend, but it still insists on requiring \'sqlite3\' gem when I try to access a page, and throws an error no such file to l
Rails 3:
In application.rb
, remove the require 'rails/all'
line and instead add these lines:
require "action_controller/railtie"
require "action_mailer/railtie"
require "active_resource/railtie"
require "rails/test_unit/railtie"
require "sprockets/railtie"
Also see Remove ActiveRecord in Rails 3 and look into the Active Model railscast
Rails 3.2.x:
You'll also need to remove/comment out this line in application.rb
config.active_record.whitelist_attributes = true
And remove/comment these two lines from development.rb
config.active_record.mass_assignment_sanitizer = :strict
config.active_record.auto_explain_threshold_in_seconds = 0.5
Rails 2.x:
In config/environment.rb
add (or uncomment) the line
config.frameworks -= [ :active_record, :active_resource, :action_mailer ]
This will cause Rails not to use those frameworks. (Note the nearly-invisible -=
!)